Tata Communications Transformation Services Interview Questions, Process, and Tips

The OSI model is a conceptual framework for understanding network communication.

• OSI stands for Open Systems Interconnection.

• It has 7 layers, each with a specific function.

• The layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer communicates with the layer above and below it.

• The model helps ensure interoperability between different network devices and software.

• Example: H...read more

Transport layer ensures reliable data transfer between end systems. Network layer provides logical addressing and routing.

• Transport layer segments and reassembles data into a stream of packets.

• Transport layer provides error checking and flow control.

• Network layer determines the best path for data to travel from source to destination.

• Network layer uses logical addressing to identify devices on a network.

• Examples of tran...read more

To improve network availability in 4G architecture, we can implement redundancy, load balancing, and network optimization techniques.

• Implementing redundancy by adding backup components such as routers, switches, and servers to ensure network availability in case of failure.

• Load balancing can be achieved by distributing network traffic across multiple servers to prevent overloading of a single server.

• Network optimizatio...read more

SMPS stands for Switched Mode Power Supply. It converts AC to DC voltage using high-frequency switching.

• SMPS uses a high-frequency switching circuit to convert AC to DC voltage

• It is more efficient than traditional linear power supplies

• New rollouts can be deployed by following a structured project management approach

• This includes planning, testing, and implementation phases

• Regular communication with stakeholders is impo

One problem faced in the operation of network is frequent network outages.

• Frequent network outages disrupt the workflow and productivity.

• It leads to communication breakdown and delays in completing tasks.

• Network outages can result in loss of important data and affect customer satisfaction.

• Troubleshooting network issues takes time and resources.

• Implementing backup systems and redundancy can help mitigate the impact of n